Battle of the Transmissions: M/T vs. A/T

[red_one]

Ano po nangyayari sir sa cvt kung isshift up ko paddle shifter? Or taas lang po rev ng engine? Okay naman po ba cvt? Minsan po mahilig ako magover take.^^

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We have ASX 2.0 CVT. No problem on overtaking. Very responsive. Harurot agad.

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[Egan101]

What I noticed on CVT is that there is no sensation of gears shifting up and down. With my Forester, when I put the pedal down, the CUV shoots above triple digits and I notice that the dashboard displays that I am in 7th or 8th gear already (with no paddle shifting).

Unlike with DCT, I can feel the gears shifting up from the low gears to the high gears. The 1st to 3rd is quite noticeable but the 4th to 6th gears is smooth and very quick.

[rukawa11]

Both
Da best i drive honda civic ek ko na manual lalo na kung galit na galit makina, dumadagundong
Da best din matic naming mirage kapag drive drive lang pang relax...


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[Egan101]

I'd like the thought of getting a weekend or project car with an MT tranny. Maybe a WRX STi "Bugeye" or an Evo VIII/IX or E46 M3.

[markkevin]

I like manual in sedan, but for suv...automatic..

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[oj88]

Alas! A never-ending debate.

The line between M/T and A/T has blurred in the past decade. Let's just be clear that 'M/T' in this context means transmissions that are all-mechanical, gear-clashing gizmos that are still operated using a manual clutch.

Many A/Ts can mimmic certain functionalities of their M/T counterparts (ie. Manual or sequential gear selection) but you still can't call it an M/T. The main difference is that 'A/T', in this context, is any transmission with an automatic clutch.

That said, people who prefers to be more involved with their gear choices is not limited to choosing an M/T.

[GTi]

I'd just like to ask a question I've often wondered about but never got an answer to, to quell any misconceptions.

In a traditional PRND2L automatic without manual shift override, is it alright to shift from "D" to "O/D off" or, in some cases, "3" during an overtaking manuever to induce a downshift? Is the tranny designed for that? Or will it cause transmission damage?

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[WallyWest]

Not really an answer to your question but doesn't simply flooring the accelerator initiate a downshift?

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[GTi]

Not really an answer to your question but doesn't simply flooring the accelerator initiate a downshift?

Tapatalked

Problem is it doesn't always initiate a downshift. Our Tribute 2.3 has a tendency to hold gears upon flooring. The Granvia was much more willing to downshift, which I suspect has to do with the extra low end torque.

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[oj88]

Problem is it doesn't always initiate a downshift. Our Tribute 2.3 has a tendency to hold gears upon flooring. The Granvia was much more willing to downshift, which I suspect has to do with the extra low end torque.

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To your original question, yes, you can shift down to D3 several seconds prior to overtaking, provided your current speed is still within the range of D3 so you don't over-rev your engine. Some vehicles would rev-match as you shift to a lower gear, especially those equipped with an electronic throttle, but if your vehicle has a mechanical throttle control, you will have to rev-match manually to maintain your speed.

The problem sometimes with just stepping on the gas pedal to trigger a downshift is the delay involved. Normally, you'd want to be already in a lower gear, rev-matched, as you time the overtake. This is referring to traditional A/T of course, not the sport/dual-clutch A/Ts that shifts almost instantaneously.

[GTi]

To your original question, yes, you can shift down to D3 several seconds prior to overtaking, provided your current speed is still within the range of D3 so you don't over-rev your engine. Some vehicles would rev-match as you shift to a lower gear, especially those equipped with an electronic throttle, but if your vehicle has a mechanical throttle control, you will have to rev-match manually to maintain your speed.

The problem sometimes with just stepping on the gas pedal to trigger a downshift is the delay involved. Normally, you'd want to be already in a lower gear, rev-matched, as you time the overtake. This is referring to traditional A/T of course, not the sport/dual-clutch A/Ts that shifts almost instantaneously.

I see. I still remember my dad's 1997 Accord VTi, which had it's transmission replaced. It was way back in the early 2000s. According to the casa it was because of my dad's habit of shifting to D3 when he wanted more power. Cost a hefty 200k too.

So you understand that I'm a bit iffy on shifting to the lower parts of the shifter to induce a downshift. Just curious, do you do that on a regular basis? And with what car?

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[oj88]

I see. I still remember my dad's 1997 Accord VTi, which had it's transmission replaced. It was way back in the early 2000s. According to the casa it was because of my dad's habit of shifting to D3 when he wanted more power. Cost a hefty 200k too.

So you understand that I'm a bit iffy on shifting to the lower parts of the shifter to induce a downshift. Just curious, do you do that on a regular basis? And with what car?

Shifting to D3 is not much different from depressing on the accelerator pedal or tapping on (-) paddle shifter (if equipped). In all three situations, the transmission will give you the lower gear. That's still within its operational parameters.

Unless the casa techie can give you the root cause of the A/T failure, his statement holds no water. A/Ts fail for an infinite number of reasons. A post-mortem report would tell you how or why the transmission died. For the most part, failures are due to factory defects, wrong ATF, improper [previous] repair, and abuse (ie. overloading, drag racing, burnouts/donuts, or simply poor maintenance).

Shifting to D3 to overtake is hardly a form of abuse. In fact, as I've mentioned above, the ECM/PCM would do it anyway if you just give it some gas or if you pull on the (-) paddle (on vehicles that have it).... it's the same thing. The only thing that can possibly wear out sooner when the shifter is moved more often than usual is the Transmission Range Switch (TRS). But that is an easy fix and it won't certainly require a new A/T.

[Janemar]

I see. I still remember my dad's 1997 Accord VTi, which had it's transmission replaced. It was way back in the early 2000s. According to the casa it was because of my dad's habit of shifting to D3 when he wanted more power. Cost a hefty 200k too.

So you understand that I'm a bit iffy on shifting to the lower parts of the shifter to induce a downshift. Just curious, do you do that on a regular basis? And with what car?

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Problematic talaga ang tranny ng accord 1997-2001. Same with civic especially if di naalagaan sa atf. You can google it, # complain sa accord/civic on those year model.

[Davidagorn]

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[jodski]

Automatic vs Manual Transmission - YouTube



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[squeesix]

kung sa probinsya ako naglalagi, masarap mt
dito sa mmla and outskirts, matic na lang...
real men drive stick? b.s. . . .

[DibsJalandoni]

Not a car expert but i need 5 replies before i can start a thread so i might as well throw my opinion here. Like what theyve said it has pros and cons. At is more convenient and relaxing esp in traffic. Mt at at certain cases can make u save fuel. And makes you feel like youre in control of the car.

Hi guys! me and my friend was on a passionate debate on what's the better type of transmission. He plans to buy a new car one in place of his old A/T car. Personally, having driven a car M/T for 5 yrs now, i encouraged him to get a M/T instead of his usual A/T. I haven't driven A/T cars that much, so i really really can't tell the better one objectively. Based on car racing games naman... manual trannys get the better edge, d ba? and i prefer it too. Pros and Cons..., maintenance cost, acceleration.. etc. Love to hear your insights mga pare. I appreciate it!

[shadow]

Go for A/T.


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[MatchuPichu0324]

A/T for city driving. M/T for highways, expressways. The comfort of having an AT in metro manila probably over weighs the expenses or sporty feel of a MT.

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[Egan101]

A/T for city driving. M/T for highways, expressways. The comfort of having an AT in metro manila probably over weighs the expenses or sporty feel of a MT.

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May mga AT naman na sporty, in fact sobrang sporty pa kaysa usual MT. Depende sa sasakyan na lang yan.